Bobbin-winding machine.



A. ROTTER.

BOBBIN WINDING MACHINE.

`APPLICATION FILED JAN. 19. 1914.

Patented July 13, 1915,.

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A. BUTTER.

BOBBIN WINDING MACHINE.

APPLICATION FILED JAN. I9, 1914.

Patented July 13, 1915.

2 SHEETS-SHEET 2.

CDLUMBIA PLANOCIRAPH C0.,WA$HINGTON. D. C,

T FFFGE,

ANTON ROTTER, F RORSCHACI-I, SWITZERLAND.

BOBBIN -WIN DIN G MACHINE.

Specication of Letters Patent.

Patented July 13, 1915.

Application filed January 19, 1914i. Serial No. 813,012.

T0 all lwhom t may concern: i

Be itknown that I, ANTON RoTTnR, a citizen of the Republic ofSwitzerland, residing at Rorschach, Switzerland, have invented new anduseful Improvements in Bobbin-lliinding Machines; and l do herebydeclare the following to be a full, clear,

and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to letters orfigures of reference marked thereon, which form a part of thisspecification.

This invention relates to improvements in winding machines for producingbobbins for shuttles of embroidering machines. The invention relates inparticular to windingmachines having several bobbin spindles, which workseparately one from another and which are provided with a beltdrive.

The invention consists in providing in the drive for each bobbin-spindlea movable pulley and in providing `foil the pulleys of allbobbin-spindles a common driving belt so that each bobbin-spindle may bestopped independently from the others by shifting laterally thecorresponding pulley or by bringing the latter out of reach of thedriving belt.

It has been proposed to provide in bobbin winding-machines a separatedriving belt for single groups of bobbin spindles in or-` der to actuatethe spindles of said groups. These arrangements have, however, thedrawback, that there has to be provided a separate `driving member foreach group and that each single bobbin spindle cannot be disconnectedand brought to a standstill independently from the others, butl a wholegroup has to be thrown out of gear.

` it is assumed, for instance, vthat the threads of only one or twobobbin spindles of the same group are broken, it is evident, that thespindles, whose thread is broken, are rotated idly till the otherspindles of this group have the desired thickness, or

the whole group of the bobbin spindles has to be stopped till the brokenthreads are again tied. This drawback is particularly inconvenient whenrepairs have to be car-` ried out on the machine and in any case theeiiiciency of the machine is impaired, or in other words, the output ofthe machine is not as great as could be expect-ed.

In the hitherto known machines the bobbin spindles are brought tostandstill by throwing out of gear a clutch serving to actuate saidspindles. Owing to the high speed of these machines it is not advisableto use clutches for imparting a movement to the bobbin spindles and forbringing them to a standstill, as they produce shocks which cause breaksor damage weak machine parts, so that the whole machine has Eo befrequently stopped for a long period of ime.

The object of the present invention is to eliminate these disadvantagesby providing a construction of the hereinbefore described type.

One convenient mode of carrying the in-l vention into elfect is shown byway of example in the accompanying drawings, in which:

Figure 1 shows a front elevation of the machine, Fig. 2 shows a planview corresponding to Fig. 1, Fig. 3 shows on an enlarged scale, partlyin section, the device for bringing a bobbin spindle to a standstill and`for operating the latter and Figs. 4*? show details of this device onan enlarged scale.

The illustrated machine has a plurality of bobbin spindles l arranged intwo rows 'and parallel one to another. These spindles are carried byfixed supports 2 in such a manner that they cannot be displaced. Fordriving the bobbin-spindles there is provided for each of them a shaft3,`the shaft 3 of two opposite winding-machines being arrangedcoaXially, but so, that they are carried independently one from anotherin bearings el fixed to a common bed plate 5. Each shaft 3 carries atoothed wheel 6 engaging a pinion 7 provided on the corresponding bobbinspindle 1. These shafts 3 actuate in a positive manner the thread guidesfor the bobbin spindles not illustrated on the accompanying drawings,since they may be of any suitable construction, for instance of the kinddescribed and illustrated in my irevious application Ser. No. 746215,filed February 4, 1913.

To each shaft 3 there is fixed a formed integral with a sleeve 9 mountedon the shaft 3 along a key 3). On one end of the sleeve 9 mountedbetween the pulley 8 and a collar the loose disk or pulley 11, while onthe other end of said sleeve there is provided an annular groove 12. Acommon driving belt pulley 8, slidably 10 (Fig. there is 13 serves toactuate all the bobbin spindles 1 and shafts 3 respectively. The belt 13passes over a fast pulley 15 fixed to the main driving shaft 14 and thenover the upper part of the pulleys 8 of all the bobbin spindles andfinally over a loose pulley 16 on the shaft 14 and arranged between twocolla-rs to prevent axial movement. (Figs. 1 and 2).

rlhe belt 13 drives the shafts 3 of both rows of bobbin spindles in thesame direction and in order to press the belt against the pulleys 8, totension said belt and prevent it from shifting in a lateral direction,there are provided between the shafts 3 guiding rollers 17 capable ofbeing moved in a vertical direction relatively to their supports 18.These rollers 17 press from above upon the belt 13, while their flangededges projecting beyond the circumference of the rollers prevent lateralmovement of said belt. (Fig. 2.)

While the intermediate shafts 3 serve to actuate the spindle 1 and thenot illustrated thread guides, there are further provided auxiliaryshafts for the actuation of the devices controlling the secondaryoperations, (for instance thebringing and stripping off of the bobbinsand the dividing of the latter from each other and the throwing in andout of gear of the bobbin spindles and the thread guides), 2'.. e. foreach row of bobbin spindles there is provided a common auxiliary shaft19. These two auxiliary shafts parallel one to another and arranged at aright angle relatively to the shafts 3 are supported in bearings 2O ofthe machine plate 5 andthey receive their drive from the main drivingshaft 14. For this purpose there is fixed to this shaft 14 a drivingpulley 21 connected by means of a belt 22 to a roller 23 mounted upon ashaft 24 parallel to the shafts 3 and rotatably supported in bearings 25of the machine plate 5. This shaft 24 is further connected by means of aworm gearing 26, 27 to the two auxiliary shafts 19. (Figs. 1 and 2.)

As already stated, the stopping of the shafts 3 and of the bobbinspindles 1 and thread guides is controlled by the auxiliary shafts 19and for this purpose there are provided the hereinafter describedautomatically acting means.

The auxiliary shafts 19 carry a fast and a movable clutch member 28 and29 respectively. The movable clutch member 29 is connected with themembers (cam disks) actuating the devices controlling the auxiliaryoperations. Of these members there is only shown in Figs. 3-5 and 7 inconnection with each bobbin spindle the cam disk 30 serving to bringsaid spindles to a standstill. A tension spring 31 presses a doublearmed lever 32 provided with a roller against the circumference of saiddisk 30. The lever 32 is carried in a fixed support 33 of the plate 5and it engages with a roller-pin provided on the bifurcated end of oneof its arms the annular groove 12 of the sleeve 9 connected to thepulley 8; at its other end it carries a pin 34. (Figs. 5 and 6.) 1nconnection with the pulley 8 there is further provided a brakeconsisting of two segment shaped brake-jaws 37 connected to the support35 and capable of being moved in a horizontal direction against theaction of springs 33. The jaws 37 are arranged on both sides of theshaft 3 and they are beveled on their outer side, Awhich is adjacent tothe pulley 8 in order to effect with the correspondingly shaped innerside of this pulley' 8 a quick stopping of the latter. On each support35 there are also mounted two guide rollers 38 for the belt 13, whichprevent in the same manner as the hereinbefore mentioned rollers 17 alateral displacement of said belt. The throwing into and out of gear ofthe clutch members 28, 29 is effected by mechanism of the kind describedand illustrated in my previous patent application SerQNo. 7 46215 andtherefore not illustrated on the drawings. The means serving for theseoperations are well known and need not be described.

In order to effect a stopping of the bobbin spindles by hand there isprovided for each single spindle 1 a hand lever 39 pivotally connectedto a support 40 fixed to the plate 5. The lever' 39 is held in itsvertical position, which corresponds to the operative position of thebobbin spindle, by a flat spring 41 (Fig. 4) fixed in the support 40 andprovided on its free end with a lug engaging a notch in the side oflever 39. A rod 42 is pivotally connected to the hand lever 39 justabove the pivot of the latter and it is also pivotally connected toaslide 43. rlhe latter is guided in the plate 5 and has on its inner endan upward bent part 431 (Fig. 3) lying against a fixed pin 44 when thelever 39 is in its vertical position and being within reach of the pin34 connected to the lever' 32 (Fig. 5). To the slide 43 there is alsofixed an arm 45 carrying on its free end a finger 46, extending towardthe disk 30 and loosely supported on the clutch member 28. This finger',which is normally (i. e. when the bobbin spindle is in operation) out ofreach of the disk 30, (Fig. 4) is brought within reach of the latter, assoon as the bobbin spindle is stopped by hand by means of the lever 39,the arm 45 with its finger being then displaced by the slide 43, thuspreventing in its position an axial displacement of the clutch member 29and the disk 30, respectively a throwing into gear of the clutch 28, 29.Owing to this arrangement the movably arranged clutch member 29 and thecam disks connected therewith remain in the inoperative position if,owing to repairs to be carried out on the bobbin spindle support,

the latter has to be taken off the plate 5 together' with the partsmounted vthereon and effecting the throwing in and out of gear of theclutch, so that said member 29 and disks will not be rotated `by theshaft 19. In this manner an accidental hurting of the workman looseningthe support for the bobbin spindle is prevented.

The `automatic stopping and throwing into gear of each of the bobbinspindles is effected in the following manner: As soon as the bobbinwound upon a spindle has the desired diameter the hereinbefore mentionedand not illustrated feeler lever throws the coupling 28, 29 into gear,the disk 30 being then also coupled with the continually rotatingauxiliary shaft 19. The revolving disk 30 acts with its raised orprojecting circumference part upon the lever 32 and moves the latteraway from the shaft 19 whereby said lever shifts with its forked end thesleeve 9 and with the latter the corresponding fast pulley 8 and theloose pulley 11 inward relatively tothe driving belt 13 on the shaft `3,z'. e. the fast pulley 8 is brought out of reach and the loose pulley 11within reach of the continually revolving belt 13, so that this beltpasses now over the loose pulley. If the pulley 8 is thus shifted in anaxial direction its beveled inner end surrounds the two brake jaws 37which bring the disk -8 quickly to a standstill owing to the action of t1e springs 36 tending to move said jaws apart, so that also the shaft 3and the bobbin spindles 1 as well as the not shown thread guides arestopped. After the wound up bobbin has been bound (the binding of thebobbin being performed before the bobbin spindle is brought entirely toa standstill) and after the bound bobbin has been shifted along thebobbin spindle, f1. e. after the preceding bobbin has been stripped ofilthe spindle and the stripper performing this operation has been movedbackward, the lever 32 is swung backward, viz. it is moved toward theshaft 19by mea-ns of the disk 30 and the spring 3l shifting thereby thesleeve 9 with the fast pulley 8 and the loose pulley 11 again outward.This eliminates the brake action of the jaws 37 and brings the loosepulley 11 out of reach and the fast pulley 8 within reach of the belt13, which passes now over this pulley 8, thus actuating again the shaft3 and with the latter the thread guides and the bobbin spindle 1. Thefinger 4 6, which was in the position shown in Fig. 4 during theautomatic throwing in and out of the shaft 3, does not prevent in thisposition in any way the throwing in and out of gear of the clutch 28,29.

If it is desired to bring the bobbin spindle to a standstill by hand,the corresponding hand lever 39 is moved from the vertical position intothe horizontal position, the slide 13 being moved outward and actingthereby with its upward bent part 431 upon the pin 34- of the lever 32.This causes the latter to be moved away from the shaft 19, thus bringingthe fast pulley 8 out of reach of the belt 13. In order to prevent anaccidental upward movement of the hand lever 39 the pivot of the rod 42on the lever' 39 is situated below the pivot of this lever 39, when thelatter is laid down.

The hereinbefore described and illustrated drive permits by means of asingle belt the actuation of any number of bobbin windingmachines, whileeach bobbin spindle forms with the corresponding separate devices a unitby itself capable of being stopped together with the thread guideindependently from the other bobbin spindles of the winding-machine, andwithout it being necessary to provide a clutch.

Vhat I claim is l. In a machine for winding bobbins for shuttles ofembroidering machines, a main driving shaft, a plurality of intermediateshafts, a fast pulley and a loose pulley axially movable on each of thelatter shafts, a belt .driven from the driving shaft normally in drivingconnection with the fast pulleys, a bobbin spindle driven by each ofsaid intermediate shafts, and means to independently shift each fastpulley out of the path of said belt, whereby the bobbin spindleconnected with the shifted pulley is stopped independently of the otherspindle.

2. In a machine for winding bobbins for shuttles of embroideringmachines, a main driving shaft, a driving belt operatively connectedwith said shaft, a plurality of intermediate shafts, a slidable but notrotatable sleeve on each of said intermediate shafts, a fast and ayloose pulley on each of said sleeves, the fast pulleys of theintermediate shafts being driven by said belt, a bobbinspindleoperatively connected to each of said intermediate shafts, andmeans for shifting each of said sleeves together with the pulleysmounted thereon in the axial direction of its shaft to stop the bobbinspindle driven by said shaft independently from the other spindles.

3. In a machine for winding bobbins for shuttles of embroideringmachines, a main driving shaft, a driving belt operatively connectedwith said shaft, a plurality of intermediate shafts, a slidable but notrotatable sleeve on each of said intermediate shafts, a fast and a loosepulley on each of said sleeves, the fast pulleys of the intermediateshafts being driven by said belt, a bobbin spindle operatively connectedto each of said intermediate shafts, a spring actuated lever operativelyconnected to each of said sleeves, auxiliary shafts driven by said belt,and cam disks on the auxiliary shafts to act-nate said levers on thecompletion of the winding of a bobbin to shift the sleeve along theshaft driving the spindle carrying the completed bobbin.

fl. In a machine for Winding bobbins for shuttles of embroideringmachines, a main driving shaft, a driving belt operatively connected tosaid shaft, a plurality of inter'- mediate shafts, a fast pulley and aloose pulley axially movable on each of said shafts, the fast pulleys ofall said shafts being driven by said driving belt, a bobbin spindledriven by each of said intermediate shafts, means to shift each fastpulley axially of the shaft carrying it and out of reach of the drivingbelt, so that each bob bin spindle may be put out of actionindependently from the other spindles, and brake means acting`automatically upon said fast pulley as soon as it is shifted, the actionof these means increasing vvith the increasing displacement of thepulley.

5. In a machine for Winding bobbins for shuttles of embroideringmachines, a main driving shaft, a driving belt operatively connected tosaid shaft, a plurality of intermediate shafts, a fast pulley and aloose pulley axially movable on each of said intermediate shafts, thefast pulleys of all said shafts being driven by said driving belt, abobbin spindle driven by each of said intermediate shafts, means toshift each fast pulley axially of the shaft carrying it and out of reachof the driving belt, bobbin spindle may be put out of actionindependently from the other spindles, tvvo spring controlled brake jawsfor the driving spindle acting upon the inner fixed support for pulleyof each side of the pulley, and a each pair of said jaws.

6. In a machine for Winding bobbins for shuttles of embroideringmachines, a main driving shaft, a driving belt operatively connected tosaid shaft, a plurality of intermediate shafts, a fast pulley and aloose pulley axially movable on each of said in- Copes of this patentmay be obtained for so that eachk termediate shafts, the fast pulleysbeing driven by said driving belt, a bobbin spindle driven by each ofsaid intermediate shafts, a hand level;l for each of the bobbinspindles, a slide connected to each hand lever, a pivotally mountedlever for each fast pulley to shift the latter axially on its shaft outof reach of the driving belt, and a projecting pin on each of saidpivotally mounted levers arranged Within reach of said slides.

7 In a machine for Winding bobbins for shuttles of embroideringmachines, a main driving shaft, a driving belt operatively connectedWith said shaft, a plurality of intermediate shafts, a sleeve slidablebut not rotatable on each of said intermediate shafts, a fast and aloose pulley on each of said sleeves, the fast pulleys being driven bysaid belt, a bobbin spindle operatively connected to each of saidintermediate shafts, an auxiliary shaft driven by the main driv ingshaft, a movable and a fixed clutch member on said auxiliary shaft foreach bobbin spindle, a cam disk connected to one of said clutch membersof each pair, a pivotally mounted lever operatively connected to eachsleeve and acted upon by the cam disks on the coupling of the clutchmember connected With a` disk, a projecting pin on each of said pivotedlevers, a hand lever for each bobbin spindle, a slide connected to eachhand lever adapted to engage said pins, an arm on each slide, and apivotally mounted finger on each arm, said finger being moved laterallyof a cam disk When the corresponding spindle is stopped to prevent acoupling of the clutch member.

In testimony that I claim the foregoing as my invention, I have signedmy name in presence of tivo subscribing Witnesses.

. ANTON BUTTER. Witnesses:

' EUGENE NABEL,

RANDALL ATKINsoN.

ve cents each, by addressing the Commissioner of Patents,

Washington, ID. C.

